Page text (OCR transcript)
EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE) FI-35
• +B (+B1) — E1
1
There is no voltage between ECU terminals +B (+B1) and E1.
(IG SW ON)
2
Check that there is voltage between ECU terminal +B (+B1) and
body ground. (IG SW ON)
OK
Check wiring between ECU terminal E1 and body ground.
OK BAD
Try another ECU. Repair or replace.
OK BAD
Check fuse, fusible links and wiring Repair or replace.
harness.
OK BAD
Check EFI main relay. Replace.
(See page FI-109)
OK
Refer to M-REL — E1 trouble
section.
